James eichaed teigwell



(No Mode 1.)

' J. R. TRIGWELL.

VELOGIPEDE.

No. 366,046. Patented July 5, 1887.

ATTORNEYS.

WITNESSES W N, PETERS, PholoLithograyhar. Washinglan. llC.

UNITED JAMES RIGHARD TRIGVVELL, OF BRIXTON, COUNTY OF SURREY, ASSIGNOR TO GEORGE WVATSON, OF MIDDLESEX, ENGLAND.

VELOCIPEDE.

SPECIFICATION forming part of Letters Patent No. 366,046, dated July 5, 181377 Application filed January 5, 1857. Serial No. 223,483. (No model.) Patented in England August 22, 1885, No, 9,990.

To all whom itmcty concern..-

Be it known that 1, JAMES RICHARD TRIG- WELL, of Brixton, in the county of Surrey, England, have invented certain new and useful Improvements in Velocipedes, of which the following is a fnll,clear, and exact descrip tion.

My invention relates to the handlebars of bicycles and other velociped'es in which the steering is controlled by a transverse handlebar; and it has for its object the complete isolation of the vibration caused'by traveling over rough roads from the hands and arms of the rider.

The invention consists in the construction and combination of parts of the non-vibrating handle-bar, as hereinafter fully described, and particularly pointed out in the claims.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a sectional elevation showing the construction ofonejoint of thehandle-bar. Fig. 2 is a sectional plan view of the same on the line 0000, Fig. 1. Fig. 3 is a cross-section of thejoint on the line yy, Fig. 1. Fig. 4is a front view showing the complete handle-bar applied to a bicyclehead.

A denotes the. center section of the handlebar fixed to the head of the bicycle in' the usual or-any approved way. B are the end sections, provided with the handles G,of any convenient form, and connected to the center section,A,by k nuckle-j oints D,so that the end sections will be allowed a free movement downward, but will be kept rigid with the center section in all other directions.

To keep the end sections of the handle-bar 40 in position and to control their movements, springs E (in the present case of rubber) are placed around the joints D, and are each inclosed between cap-plates A B, held on the handle-bar sections A B. The cap-p1ates A are fixed upon the center section,A,while the cap-plates B are preferably mounted loosely on nuts B, screwing on the end seetions,]3, so that'the tension of the springs E may be adj usted to give the required amount of elasticity.

By constructing the bar in three sections, jointed as described, the joints being located at a distance from the head, the strain on and hence liability to breakage of the same are not so great,while the vibration is perfectly isolated from the handles.

Havingthus described myinveution, I claim as new and desire to secure by Letters Patent 1. In a handle bar for velocipedes,the combination,with the sections AB, connected by a vertically flexiblej oint, of a stiffeningspring forcing the outer section upward with ayielding pressure, substantially as herein shown and described.

2. In a handlebar for velocipcdes,the conibination, with the sections A B, connected by a vertically flexible joint, of a stiffening-spring encircling the joint, substantially as shown and described. 7

3. In a handle-bar for avelocipede,the combination, with the jointed sections AB, of a spring for stiffening the joint, and an adjusting device for regulating the tension of the spring, substantially as shown and described. 7 3

4. In a handle-bar for a velocipede,the combination, with the jointed sections AB, of a spring encircling the joint, plates between which the spring is-held,and a nut for moving one of the plates, substantially as shown and described.

In testimony that I claim the foregoing as my invention Ihave signed my name, in pres ence of two witnesses, this 8th day of November, 1886.

JAMES RICHARD TRIGVVEL L.

Witnesses:

J OHN DE LANNOY W ATSON, 17 Josephine Avenue, Brizvi'on, London, S. W.

HARRY JOHN J ONES, '71 Mansfield Road, Kentish T0wn,L0nd0n, N. ll. 

